NON-LINEAR CIRCUIT AND CHAOS NEURAL NET USING IT

摘要

The present invention discloses a chaotic neural network using a nonlinear circuit. The circuit includes a first sample hold for sampling an input signal in response to the first clock signal; Nonlinear means for generating an output signal having a nonlinear characteristic corresponding to the output signal of the first sample hold; Addition means for adding an output signal and an external input signal of said non-linear means; A second sample holder for sampling an output signal of the adding means in response to a second clock signal and outputting the output signal to an input terminal of the first sample hold; And a clock generating means for generating the first clock signal and the second clock signal, the nonlinear means comprising: a first variable resistor having one side to which an output signal of the first sample hold is applied; An amplifier having a negative input terminal connected to the other side of the first variable resistor and a positive input terminal connected to ground: a second variable resistor having one side connected to the negative input terminal of the amplifier; A third variable resistor having one side connected to an output terminal of the amplifier and the other side connected to the other side of the second variable resistor; And a fourth variable resistor having one side to which the output signal of the first sample hold is applied, the other side of the third variable resistor, and the other side commonly connected to the input terminal of the adding means. Thus, the configuration of the chaotic neural network including the nonlinear circuit is simplified.